package cn.zd.demo.flink.statebackend;

import java.util.Arrays;

public class ClassTest {
    public static void main(String[] args) {
        System.out.println(new ClassTest().getClass().getTypeName());
        String[] s1 = new String[]{"a",null,"b"};
        System.out.println(null != null);
        Arrays.stream(s1).forEach(s -> {
            System.out.println("s:"+s + " " + (s != null));
        });
        for (int i = 0; i < s1.length; i++) {
            System.out.println("s:"+s1[i] + " " + (s1[i] != null));
        }
    }
}
